tools/llvm-c-test/object.c

   1 /*===-- object.c - tool for testing libLLVM and llvm-c API ----------------===*\
   2 |*                                                                            *|
   3 |*                     The LLVM Compiler Infrastructure                       *|
   4 |*                                                                            *|
   5 |* This file is distributed under the University of Illinois Open Source      *|
   6 |* License. See LICENSE.TXT for details.                                      *|
   7 |*                                                                            *|
   8 |*===----------------------------------------------------------------------===*|
   9 |*                                                                            *|
  10 |* This file implements the --object-list-sections and --object-list-symbols  *|
  11 |* commands in llvm-c-test.                                                   *|
  12 |*                                                                            *|
  13 \*===----------------------------------------------------------------------===*/
  14
  15 #include "llvm-c-test.h"
  16 #include "llvm-c/Core.h"
  17 #include "llvm-c/Object.h"
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20
  21 int object_list_sections(void) {
  22   LLVMMemoryBufferRef MB;
  23   LLVMObjectFileRef O;
  24   LLVMSectionIteratorRef sect;
  25   char *msg = NULL;
  26
  27   if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
  28     fprintf(stderr, "Error reading file: %s\n", msg);
  29     exit(1);
  30   }
  31
  32   O = LLVMCreateObjectFile(MB);
  33   if (!O) {
  34     fprintf(stderr, "Error reading object\n");
  35     exit(1);
  36   }
  37
  38   sect = LLVMGetSections(O);
  39   while (!LLVMIsSectionIteratorAtEnd(O, sect)) {
  40     printf("'%s': @0x%08" PRIx64 " +%" PRIu64 "\n", LLVMGetSectionName(sect),
  41            LLVMGetSectionAddress(sect), LLVMGetSectionSize(sect));
  42
  43     LLVMMoveToNextSection(sect);
  44   }
  45
  46   LLVMDisposeSectionIterator(sect);
  47
  48   LLVMDisposeObjectFile(O);
  49
  50   return 0;
  51 }
  52
  53 int object_list_symbols(void) {
  54   LLVMMemoryBufferRef MB;
  55   LLVMObjectFileRef O;
  56   LLVMSectionIteratorRef sect;
  57   LLVMSymbolIteratorRef sym;
  58   char *msg = NULL;
  59
  60   if (LLVMCreateMemoryBufferWithSTDIN(&MB, &msg)) {
  61     fprintf(stderr, "Error reading file: %s\n", msg);
  62     exit(1);
  63   }
  64
  65   O = LLVMCreateObjectFile(MB);
  66   if (!O) {
  67     fprintf(stderr, "Error reading object\n");
  68     exit(1);
  69   }
  70
  71   sect = LLVMGetSections(O);
  72   sym = LLVMGetSymbols(O);
  73   while (!LLVMIsSymbolIteratorAtEnd(O, sym)) {
  74
  75     LLVMMoveToContainingSection(sect, sym);
  76     printf("%s @0x%08" PRIx64 " +%" PRIu64 " (%s)\n", LLVMGetSymbolName(sym),
  77            LLVMGetSymbolAddress(sym), LLVMGetSymbolSize(sym),
  78            LLVMGetSectionName(sect));
  79
  80     LLVMMoveToNextSymbol(sym);
  81   }
  82
  83   LLVMDisposeSymbolIterator(sym);
  84
  85   LLVMDisposeObjectFile(O);
  86
  87   return 0;
  88 }